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  1. import java.io.*;
  2. import java.util.Scanner;
  3.  
  4. class Ideone
  5. {
  6. 	/**
  7. 	Convert decimal number lying between 1-3999 to roman numerals
  8.  
  9. 	SYMBOL       VALUE
  10. 	I             1
  11. 	II			  2
  12. 	III			  3
  13. 	IV            4
  14. 	V             5
  15. 	X             10
  16. 	L             50
  17. 	C             100
  18. 	D             500
  19. 	M             1000     
  20. 	**/
  21. 	private static String roman(int n) {
  22.  
  23. 		String[] thousands ={"", "M", "MM", "MMM"};
  24. 		String[] hundreds={"", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM"};
  25. 		String[] tens={"", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC"};
  26. 		String[] ones={"", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX", "L"};
  27.  
  28. 		return thousands[n/1000]+hundreds[(n%1000)/100]+tens[(n%100)/10]+ones[n%10];
  29. 	}
  30.  
  31. 	public static void main(String[] args) throws java.lang.Exception
  32. 	{
  33. 		Scanner in = new Scanner(System.in);
  34.     	int n = in.nextInt();
  35. 		System.out.println(roman(n));
  36. 	}
  37. }
Success #stdin #stdout 0.22s 60956KB
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MMCMLX
https://ideone.com/hUVGHe
language:
Java (HotSpot 12)
created:
10 days ago
visibility:
public

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